<form method="post" action="calc.php"><pre>
      Loan Amount <input type="text" name="principle" />
Monthly Repayment <input type="text" name="monthly" />
  Number of Years <input type="text" name="years" value="25" />
    Interest Rate <input type="text" name="rate" value="6" />
                  <input type="submit" />
</pre></form>
